That is not the case though, as how white your teeth may become depends on how white your teeth
were when they just came out. Bleaching
does not make enamel whiter, instead it gets rid of all the stain on the teeth you may have acquired from drinking tea, coffee, soda, smoking and eating foods with color additives. Over-bleaching may even cause your teeth to become see through (pretty freaky sight if you ask me). Thankfully this sort of side effect passes after 24 hours.